File size: 5,798 Bytes
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//!
//! Star can read files to learn about its environment and the world.
use std::fs;
use std::path::{Path, PathBuf};
use tracing::info;
/// Result of a file read operation.
#[derive(Debug)]
pub struct ReadResult {
pub path: String,
pub content: String,
pub success: bool,
pub error: Option<String>,
pub lines: usize,
}
/// File reader for Star.
pub struct FileReader {
/// Allowed base directories (security)
allowed_dirs: Vec<PathBuf>,
}
impl FileReader {
/// Create a new file reader with allowed directories.
pub fn new() -> Self {
let allowed_dirs = vec![
PathBuf::from("/home/zach/.openclaw/workspace"),
PathBuf::from("/home/zach"),
PathBuf::from("/home/zach/Documents"),
PathBuf::from("/home/zach/Downloads"),
PathBuf::from("/home/zach/Desktop"),
];
Self { allowed_dirs }
}
/// Check if a path is allowed.
fn is_allowed(&self, path: &Path) -> bool {
// Resolve any symlinks first
let resolved = fs::canonicalize(path).ok();
let check_path = resolved.as_deref().unwrap_or(path);
self.allowed_dirs.iter().any(|dir| {
check_path.starts_with(dir) || check_path == dir
})
}
/// Read a file and return its contents.
pub fn read(&self, path: &str) -> ReadResult {
let path = PathBuf::from(path);
// Security check
if !self.is_allowed(&path) {
return ReadResult {
path: path.display().to_string(),
content: String::new(),
success: false,
error: Some("Path not allowed. Can only read files in workspace, home, Documents, Downloads, Desktop.".to_string()),
lines: 0,
};
}
// Check if file exists
if !path.exists() {
return ReadResult {
path: path.display().to_string(),
content: String::new(),
success: false,
error: Some("File not found.".to_string()),
lines: 0,
};
}
// Check if it's a file (not a directory)
if !path.is_file() {
return ReadResult {
path: path.display().to_string(),
content: String::new(),
success: false,
error: Some("Path is a directory, not a file.".to_string()),
lines: 0,
};
}
// Try to read
match fs::read_to_string(&path) {
Ok(content) => {
let lines = content.lines().count();
info!("Read file: {} ({} lines)", path.display(), lines);
ReadResult {
path: path.display().to_string(),
content,
success: true,
error: None,
lines,
}
}
Err(e) => ReadResult {
path: path.display().to_string(),
content: String::new(),
success: false,
error: Some(format!("Cannot read: {}. Do you have permission?", e)),
lines: 0,
},
}
}
/// List files in a directory.
pub fn list_dir(&self, dir_path: &str) -> Result<Vec<String>, String> {
let path = PathBuf::from(dir_path);
if !self.is_allowed(&path) {
return Err("Path not allowed.".to_string());
}
if !path.exists() {
return Err("Directory not found.".to_string());
}
if !path.is_dir() {
return Err("Path is not a directory.".to_string());
}
let mut entries = Vec::new();
match fs::read_dir(&path) {
Ok(dir) => {
for entry in dir.filter_map(|e| e.ok()) {
let file_name = entry.file_name().to_string_lossy().into_owned();
let file_type = if entry.path().is_dir() { "/" } else { "" };
entries.push(format!("{}{}", file_name, file_type));
}
Ok(entries)
}
Err(e) => Err(format!("Cannot read directory: {}", e)),
}
}
/// Search for files matching a pattern.
pub fn find_files(&self, dir: &str, pattern: &str) -> Result<Vec<String>, String> {
let path = PathBuf::from(dir);
if !self.is_allowed(&path) {
return Err("Path not allowed.".to_string());
}
if !path.exists() || !path.is_dir() {
return Err("Directory not found.".to_string());
}
let mut matches = Vec::new();
self.search_recursive(&path, pattern, &mut matches)?;
Ok(matches)
}
fn search_recursive(&self, dir: &Path, pattern: &str, results: &mut Vec<String>) -> Result<(), String> {
if !self.is_allowed(dir) {
return Ok(());
}
let entries = fs::read_dir(dir).map_err(|e| e.to_string())?;
for entry in entries.filter_map(|e| e.ok()) {
let path = entry.path();
let name = entry.file_name().to_string_lossy().to_string();
if path.is_dir() {
if !name.starts_with('.') {
self.search_recursive(&path, pattern, results)?;
}
} else if name.to_lowercase().contains(&pattern.to_lowercase()) {
results.push(path.display().to_string());
}
}
Ok(())
}
}
impl Default for FileReader {
fn default() -> Self {
Self::new()
}
}
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